I too saw the show, but mainly because I like Jill Zarin. I thought the leopard and zebra knickers looked nice but the price was crazy. I did order a high top, mid leg length pair of Spanx a year or so ago to try them out. I think it was 2 pairs for the price of one or something so the price was reasonable-ish.
I assume the waist high knickers are OK, but beware the ones that go up to the bra area. The thing that totally freaked me out and is the reason I will never buy these is that there is a hole provided so you can pee through it. Ugh, ugh and triple ugh!!!